56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
 
|
package validate
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"fmt"
|
||
|
|
"testing"
|
||
|
|
)
|
||
|
|
|
||
|
|
func ExampleCollect() {
|
||
|
|
v := Collect(MinLength(4), Chars("0123456789abcdef"))
|
||
|
|
fmt.Println(v("xy"))
|
||
|
|
// Output:
|
||
|
|
// must contain at least 4 characters
|
||
|
|
// contains disallowed characters
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestCollect(t *testing.T) {
|
||
|
|
v := Collect(
|
||
|
|
MinLength(4),
|
||
|
|
MaxLength(8),
|
||
|
|
Chars("0123456789abcdef"),
|
||
|
|
)
|
||
|
|
|
||
|
|
t.Run("no failures returns nil", func(t *testing.T) {
|
||
|
|
if err := v("abc123"); err != nil {
|
||
|
|
t.Fatalf("got %v, want nil", err)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
t.Run("every failure is reported", func(t *testing.T) {
|
||
|
|
// too long (>8) and contains disallowed characters; not too short.
|
||
|
|
err := v("xyz!!!!!!!!")
|
||
|
|
|
||
|
|
if errors.Is(err, ErrMustBeLonger) {
|
||
|
|
t.Error("did not expect ErrMustBeLonger in", err)
|
||
|
|
}
|
||
|
|
if !errors.Is(err, ErrMustBeShorter) {
|
||
|
|
t.Error("want ErrMustBeShorter in", err)
|
||
|
|
}
|
||
|
|
if !errors.Is(err, ErrDisallowedChars) {
|
||
|
|
t.Error("want ErrDisallowedChars in", err)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
t.Run("a single failure still matches with errors.Is", func(t *testing.T) {
|
||
|
|
err := v("12") // only too short
|
||
|
|
|
||
|
|
if !errors.Is(err, ErrMustBeLonger) {
|
||
|
|
t.Error("want ErrMustBeLonger in", err)
|
||
|
|
}
|
||
|
|
if errors.Is(err, ErrDisallowedChars) {
|
||
|
|
t.Error("did not expect ErrDisallowedChars in", err)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|